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Class 9 Biology Chapter 1: Introducing Biology

10 October 2026

What this chapter is

Biology is the study of living things: how they are built, how they work, and how they change.

The first chapter names the branches and the levels of organisation. You do not need the book open to start. Name the idea, then say it in your own words.

How to study it

  1. Say what biology studies.
  2. Name one branch and what it covers.
  3. Do the check on the lesson before you close the tab.

The book stays with you. This note does not copy it.

Quick answers

Is the book copied here?

No. This is an original start. The lesson on the site is the work.

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